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How is anaphylaxis recognized?

A J Apter1, H A LaVallee

  • 1Department of Medicine, University of Connecticut Health Center, Farmington.

Archives of Family Medicine
|August 1, 1994
PubMed
Summary
This summary is machine-generated.

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Prompt recognition of anaphylaxis is crucial. New criteria for diagnosing anaphylaxis rapidly include systemic signs like hypotension or respiratory compromise within one hour of allergen exposure, or skin reactions alongside systemic signs.

Area of Science:

  • Allergy and Immunology
  • Emergency Medicine
  • Clinical Diagnostics

Background:

  • Anaphylaxis recognition is critical for patient survival.
  • Current diagnostic approaches lack objective criteria for rapid assessment.
  • Existing literature describes anaphylaxis presentation but not standardized diagnostic rules.

Purpose of the Study:

  • To develop objective clinical criteria for the rapid diagnosis of anaphylaxis.
  • To enhance the prompt recognition of anaphylaxis in clinical settings.
  • To establish evidence-based guidelines for identifying anaphylactic reactions.

Main Methods:

  • A systematic review of the scientific literature was conducted.
  • MEDLINE database search for "anaphylaxis" over a one-year period.

Related Experiment Videos

  • Analysis of 160 articles describing initial anaphylaxis manifestations, focusing on clinical signs and reaction times.

    • Main Results:

    • Hypotension (72%) and urticaria/angioedema (60%) were the most common signs.
    • Diagnostic or therapeutic agents were implicated in 73% of identified allergens.
    • Anaphylactic reactions typically occurred within 60 minutes of allergen exposure.

    Conclusions:

    • Anaphylaxis recognition can be improved by applying specific diagnostic criteria.
    • Proposed criteria include systemic signs within 1 hour of allergen exposure or skin manifestations with systemic signs.
    • These criteria encompass 82% of presentations analyzed in the literature.